Patna, Jan 29 (IANS): The Congress party should take action against its legislator Sidharth Kumar Singh for allegedly kidnapping a young woman, Bihar's ruling Janata Dal-United said here on Friday.

"Congress should take action against its legislator just like we acted against ours," JD-U state president Vashsisht Narain Singh said, referring to the suspension this month of Janata Dal-United lawmaker Sarfaraz Alam who was booked for allegedly misbehaving with a couple on board a train.

Congress and JD-U are members of the 'Mahagathbandhan' (Grand Allaince) that came to power in Bihar through the asembly elections in October-November 2015. 

The JD-U leader said the accusation against the Congress legislator who represents Bikram assembly constituency in Bihar, was bad for the image of the state government.

According to a police complaint lodged against Sidharth Kumar Singh by the young woman's father, the legislator kidnapped his daughter, police said.

Police have failed so far to find the young woman.

Sidharth Kumar Singh eloped with the young woman who is in her early 20s in the past also, the local people informed police.

The Congress lawmaker, who is in his early 30s, has served a jail term for a murder. He is the son of a reputed Patna-based child specialist Uptal Kant Singh.

Opposition BJP and its allies Lok Janshakti Party, Rashtriya Lok Samta Party, and Hindustani Awam Morcha have targeted Chief Minister Nitish Kumar over the incident, reminding him it could be another proof of the "return of jungle raj" in the state.